Move files to exp_legacy

exp_legacy/module/config/pollution_grading.lua

@@ -0,0 +1,9 @@
+--- This controls how pollution is viewed on the map
+-- @config Pollution-Grading
+
+return {
+    reference_point = {x=0,y=0}, --- @setting reference_point where pollution is read from
+    max_scalar = 0.5, --- @setting max_scalar the scale between true max and max
+    min_scalar = 0.17, --- @setting min_scalar the scale between the lowest max and min
+    update_delay = 15 --- @setting update_delay time in minutes between view updates
+}